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Situados sobre la línea que une Punta Cires y el faro de la Isla de Tarifa, y a 5 millas de Punta Cires, navegamos con rumbo verdadero 270º hasta encontrarlos al Norte de Tánger. ¿En qué posición nos encontramos en el punto final al Norte de Tánger?.Positioned on the line joining Punta Cires and Isla de Tarifa lighthouse at 5 miles from Punta Cires, you steer true course 270º until due North of Tangier. What is your final position?
Show the answer
Correct answer: a) Latitude: 35º 57.8' N / Longitude: 05º 47.4' W
Why it is correct
On the Punta Cires–Isla de Tarifa line 5 miles from Punta Cires, latitude is 35º 57.8′ N (longitude 005º 33.4′ W). Steering Rv = 270º (due West) maintains latitude 35º 57.8′ N until intersecting the meridian of Tangier port at 005º 47.4′ W.
Why the others are not
- b) Does not preserve the starting latitude 35º 57.8′ N while steering 270º true.
- c) Does not preserve the starting latitude 35º 57.8′ N while steering 270º true.
- d) Does not preserve the starting latitude 35º 57.8′ N while steering 270º true.
How to work it out in the exam
- Plot the point on the Cires–Tarifa line 5 miles from Cires (l = 35º 57.8′ N).
- Follow course 270º (parallel 35º 57.8′ N) to due north of Tangier: L = 005º 47.4′ W.
Where this question comes from
- Región de Murcia · 2021 · 1ª convocatoria · PER Tipo 1 · question 42 Official paper · Official answer key
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Pending instructor review. Machine translation, not reviewed.